3 oz of club soda (or clear soda)
1 tsp of grenadine syrup
1 1/2 oz of effen black cherry vodka (or citrus-infused vodka)
Pour Grenadine into bottom of short cocktail glass. Fill to top with ice. Pour vodka and soda at same time gently over ice. Garnish with a Maraschino or better, a black cherry.